[ECOLOG-L] Statistical question regarding interaction terms

2009-05-06 Thread Cortney Watt
Hi all These are the emails I got regarding my question on not getting significance in an interaction term, even when simple effects show there is significance. Thanks to everyone who responded! 1) Your question might be better suited to the r-sig list: R-sig-ecology mailing list

[ECOLOG-L] Statistical question regarding interaction terms

2009-04-28 Thread Cortney Watt
even when canopy effects depend on the level of elevation being considered? Any advice would be greatly appreciated Thanks Cortney Watt

[ECOLOG-L] Calculating 94% Confidence Intervals

2008-09-10 Thread Cortney Watt
You can calculate 95% confidence intervals and 90% confidence intervals, but does anyone know how to calculate values between 90 and 95? Essentially I am searching for a t table that has t values to calculate these alternate confidence intervals. Thanks in advance.

[ECOLOG-L] Identifying Amphipods

2008-06-04 Thread Cortney Watt
I have had a few requests to post the emails regarding my inquiry about identifying amphipods: Identifying amphipods to genus is relatively simple, to species can be a bit more tricky. Do you know what sub-order of amphipods you have- gammarid, caprellid, hyperiid? From there it tends to be

[ECOLOG-L] Identifying amphipods

2008-05-31 Thread Cortney Watt
Hi I am very sorry, I guess I should have included a little more information. I am trying to identify marine amphipods on the Atlantic coast of Nova Scotia. I will be identifying a few samples in the lab but I am taking species diversity data in the field, so features that I could see using

[ECOLOG-L] Identifying amphipods

2008-05-30 Thread Cortney Watt
Hi I am trying to identify amphipods down to species if possible, and was wondering if anyone knows how to identify these organisms and if they could offer any suggestions. Thanks Cortney Watt